(2S,3S,4S,5R,6S)-3,4,5-Triacetoxy-6-(2-bromomethyl-phenoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
吡啶 、
silver nitrate 作用下,
以
乙酸乙酯 、
N,N-二甲基甲酰胺 、
丙酮 为溶剂,
反应 1.25h,
生成 methyl (2S,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[2-[[(2S,3S,4S,6R)-6-[[(1S,3S)-3-acetyl-3,5,12-trihydroxy-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]-3-hydroxy-2-methyloxan-4-yl]carbamoyloxymethyl]phenoxy]oxane-2-carboxylate